12565003 has 6 divisors (see below), whose sum is σ = 13811252. Its totient is φ = 11422620.

The previous prime is 12564977. The next prime is 12565009. The reversal of 12565003 is 30056521.

It is a happy number.

It is not a de Polignac number, because 12565003 - 2⁵ = 12564971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12565009) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51801 + ... + 52042.

Almost surely, 2^12565003 is an apocalyptic number.

12565003 is a deficient number, since it is larger than the sum of its proper divisors (1246249).

12565003 is a wasteful number, since it uses less digits than its factorization.

12565003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103865 (or 103854 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 12565003 is about 3544.7147981185. The cubic root of 12565003 is about 232.4810359527.

The spelling of 12565003 in words is "twelve million, five hundred sixty-five thousand, three".